Hierarchical CuCo2S4 nanoarrays for high-efficient and durable water oxidation electrocatalysis

被引：88

作者：

Yang, Lin ^{[1
]}

Xie, Lisi ^{[1
]}

Ren, Xiang ^{[1
]}

Wang, Ziqiang ^{[1
]}

Liu, Zhiang ^{[2
]}

Du, Gu ^{[3
]}

Asiri, Abdullah M. ^{[4
]}

Yao, Yadong ^{[5
]}

Sun, Xuping ^{[1
]}

机构：

[1] Sichuan Univ, Coll Chem, Chengdu 610064, Sichuan, Peoples R China

[2] Qufu Normal Univ, Coll Chem & Chem Engn, Qufu 273165, Shandong, Peoples R China

[3] Chengdu Inst Geol & Mineral Resources, Chengdu 610081, Sichuan, Peoples R China

[4] King Abdulaziz Univ, Dept Chem, Fac Sci, Jeddah 21589, Saudi Arabia

[5] Sichuan Univ, Coll Mat Sci & Engn, Chengdu 610064, Sichuan, Peoples R China

来源：

CHEMICAL COMMUNICATIONS | 2018年 / 54卷 / 01期

基金：

中国国家自然科学基金;

关键词：

OXYGEN EVOLUTION REACTION; BIFUNCTIONAL ELECTROCATALYST; SURFACE-AMORPHIZATION; ELECTRODE MATERIAL; NANOTUBE ARRAY; NANOWIRE ARRAY; CARBON CLOTH; PERFORMANCE; NANOSHEETS; CATALYST;

D O I：

10.1039/c7cc07259g

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

It is highly attractive to design and develop earth-abundant electrocatalysts toward high-efficiency water oxidation electrocatalysis in alkaline media. In this communication, we report the in situ hydrothermal sulfidization preparation of a hierarchical CuCo2S4 nanoarray on copper foam (CuCo2S4/CF) from its CuCo2-hydroxide nanowire array precursor. When used as a 3D catalyst electrode for water oxidation, the as-prepared CuCo2S4/CF is superior in catalytic activity, demanding overpotentials of only 259 and 295 mV to achieve 60 and 100 mA cm(-2) in 1.0 M KOH, respectively. Moreover, it also shows strong electrochemical durability with high turnover frequency values of 0.069 and 0.390 mol O-2 s(-1) at overpotentials of 300 and 400 mV, respectively.

引用

页码：78 / 81

页数：4

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